Im not interested how much it costs (Monitoring fees, extra components etc. etc.) I just want to know opinions, what is best? A monitored security alarm or a bells only alarm?
Thanks, Please answer ASAP!
I googled it, alarms are systems designed to detect unauthorized entry into a building or area. They consist of an array of sensors, a control panel and alerting system, and interconnections. Sensors detect intruders by many methods such as monitoring door and window contacts, by passive infrared motion detectors, ultrasound, vibration, electric or magnetic fields, or microwaves. Sensors may be directly wired to a control panel that provides sensor power, or may communicate wirelessly.
But I didn't find the monitored security alarm, what is it?
Last edited by sophie hello; 01-11-2012 at 08:30 AM.
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